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http://dx.doi.org/10.4313/JKEM.2004.17.1.031

Measurement of all the Elastic, Dielectric and Piezoelectric Properties of PMN-PT Single Crystals  

이상한 (경북대학교 기계공학과)
이수성 (경북대학교 센서공학과)
노용래 (경북대학교 기계공학과)
이호용 (선문대학교 재료공학과)
한진호 ((주)프로소닉)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.17, no.1, 2004 , pp. 31-38 More about this Journal
Abstract
PMN-PT, a piezoelectric single crystal, has many useful applications such as sensors and actuators. In this paper, all the elastic, piezoelectric, and dielectric constants of the PMN-32％PT single crystals were measured by the resonance method. For the rhombohedral symmetry, a total of twelve independent material constants were measured such as six elastic compliance constants at constant electric field, two dielectric constants at constant stress, and four piezoelectric constants d. Seven sets of crystal samples of each different geometry were prepared for the measurement of length-thickness extensional, thickness extensional, radial, length extensional and thickness shear modes of vibration, respectively. In order to check the validity of the measurement, experimental impedance spectrum of the PMN-PT crystal was compared with numerical data spectrum calculated with the measured material constants. The good agreement between the two spectra confirmed validity of the results in this paper.
Keywords
PMN-PT single crystals; Resonance method; Vibration mode; Piezoelectricity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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